This is from my computer. Win XP, Road Runner, ran AA. Question; Can I safely remove the AOL entry
O16 - DPF: {4A3CF76B-EC7A-405D-A67D-8DC6B52AB35B} (QDiagAOLCCUpdateObj Class) - http://aolcc.aol.com/computercheckup/qdiagcc.cab ?
I'm pretty sure it's the novice AOL tweaking feature that used to come up automatically. I don't have AOL anymore and thought I had cleaned out all of their files.
HT log is as follows:

All O16 items can be removed without heavy repercussions. If you remove something you turn out to need after all, it will be downloaded (or you will be prompted to download, depending on your settings) to your computer.
It is only because some of them are fairly big (Windows update, online scanners) and/or needed often (Macromedia, Quicktime, your bank) that they get stored on your computer.